Eugene boitlier



(No Model.)

E. BOULIER. SPEED INDICATOR PoR BIGYGLES.

No. 523,565'. Patented July 2.4, 1894.-

Mivar/@g5 TH: Noam: PETERS on.. Vnoro'umo.. wAsnNcToNxn. c.

UNirED STATES PATENT OFFICE..

EUGENE BoUL1ER,oE LEs LILAs, FRANCE.

SPEED-INDICATOR Foa BICYCLES.

SPECIFICATION forming part of Letters Patent No. 523,565, dated July 24, 1894.

Application iled May 10, 1893- Serial No. 473,701. (No model.) Patented in France December 8, 1892, No. 226,251; in

Belgium February 17, 1893; in England February 17, 1893 No. 3,562 in Luxemburg April 27, 1893, No. 1,818; in Switzerland April 28,1893, No. 6,708; in Italy May 13, 1893, No. 33,998/380, and in Austria-Hungary October 20, 1893,110.

24,254 and No. 39.901.

To a/ZZ whom it may concer-n:

Be it known that I, EUGENE BOULIEE, a citizen of the Republic ot' France, residing at Les Lilas, in the Republic of France, have invented certain new and useful Improvements in Speed-Indicators, (for which I have obtained Letters Patent in France, No. 226,251, dated December 8, 1892; in Belgium, dated February 17, 1893; in England, No. 3,562, dated February 17, 1893; in Austria-Hungary, No. 24,254 and No. 39,901, dated October 20, 1893; in Italy, No. 33,998/380, dated May 13, 1893 in Luxemburg, No. 1,818, dated April 27, 1893, and in Switzerland,fNo. 6,708, dated April 28, 1893,) of which the following is a specification.

The present invention is especially 'in-- y tended to be used in connection with veloci-'- pedes and comprises the adaptation of a speed-indicator to a velocipede which indicator is ,mounted on the handle -bar and worked by the movement of the machine.

Figure 1 shows the method ot' applying the invention to a bicycle. Fig. 2 is a view showing the exterior ot' the indicator and the indicator dial. Fig. 3 is a side View partly in section with the cover removed and showing v the mechanism. Fig..4 is a longitudinal secthrough the case and mechanism.

rIhe indicator comprises a regulator provided with wings and the arbor a of which passing through one of the covers of the circular case O containing the mechanism, is prvided at its extremity outside the case With a pulley b which is driven by a cord or string, passing over a pulley b of a larger diameter which latter vis fixed in the present case on the hub of the front wheel of the bicycle; it is evident that any other suitable means of driving the indicator could be adopted. The other extremity of the arbor ais made to receive a spindle m provided with a groove or slot m in which enter pins g on the knees n of the wings Z pivoted in the arbor a are enabled to open more or less under centrifugal action according to the speed of the machine.

1n order to obtain a constant and automatic indication of the speed it is only necessary to communicate the angular movement of the wings Z through the spindle m to a pointer moving over a dial which may be f eating kilometers per hour and others indidicati'ng English miles per' hour.` For this purpose the said spindle m, which is submitted to the action of a springf, the tension of which should be adjusted according to the centrifugal force developed by the wings l,

acts on a little crank n which is fixed to the arbor it'" of the pointer am anda very Weak spring o acting against the pin n keeps the crank always in contact With thespring f. The axis of the pointer is fixed in the usual way on the spindle m. A clamp cis provided to tix the apparatus on the handle-bar or in any other suitable place on the machine where it may be easily seen by the cyclist. It is obvious that by this means the cyclist, knowing the normal speed he desires to keep up, can at any moment lascertain whether he goes more or less wrong and thus regulate his speed accordingly.

I claim- 1. In a speed indicator, the combination with the driving spindle and bell crank arms weighted on the outer ends j ournaled thereon to swing transversely, of the longitudinally movable spindle cooperating with the inner ends of the bell crank arms and'moved lon- Y 2. In a speed indicator for bicycles and similar vehicles, the combination with the cas ing having the clamp for attachment to the vehicle, the spindle journaled in the casing and having thewheel on the outer end adapted to be connected by gearing to one of the cooperates to indicate the rate of speedgsu ground wheels, lche transversely swinging stantially as described.

Weighted bell crank arms carried by the in- In testimony whereofI have hereunto set myV ner end of the spindle, and the longitudinally hand in the presence of two subscribing wit- 5 movalmble spindle moved by said arms, of the nesses. y

cran c shaft, the pointer carried thereby, the

arm interposed between the crank and endoi1 EUGNE BOULDER the longitudinally movable spindle,tlie spring Vitnesses:

foi` returning the crank to normal position LLULLYE,

1o and the external dial with which the pointer ROBT. M. HOOPER. 

